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Finding the Fourth Proportional to 22,747.68, 34,127.70 and 12,893.88

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Solution

The fourth proportional to 22,747.68, 34,127.70 and 12,893.88 is: 19,344.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,747.68 : 34,127.70 = 12,893.88 : x
  2. Step 2: Convert to fraction form
    22,747.68/34,127.70 = 12,893.88/x
  3. Step 3: Cross multiply
    22,747.68x = 34,127.70 × 12,893.88
  4. Step 4: Simplify right side
    22,747.68x = 440,038,468.48
  5. Step 5: Solve for x
    x = 440,038,468.48/22,747.68
  6. Step 6: Final answer
    x = 19,344.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.